UI needs rework

[BillionShields]

UI needs rework. modules do not fit on the screen
2. App randomly changes main window mode - sometimes Full Screen sometimes custom and it's frequent and random
3. modules separator has only 1 mode - on/off it should be smooth scrolling instead on/off removing
hard to grab and move,
Bugs
If model does not support files I should not be able to attach files
Make it multimodal as GPT+ I don't need to remember which model does what

[sockthem]

yes please fix this